#gnar-boot-chip {
        position: fixed;
        left: 50%;
        bottom: 96px; /* above the bottom time-band/scrub-rail area */
        transform: translateX(-50%);
        z-index: 9999;
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 7px 14px;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.94);
        border: 1px solid rgba(22, 111, 130, 0.45);
        box-shadow: 0 2px 10px rgba(22, 32, 31, 0.14);
        font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
        font-size: 11px;
        letter-spacing: 0.02em;
        color: #16201f;
        opacity: 1;
        transition: opacity 300ms ease;
        pointer-events: none;
      }
      #gnar-boot-chip[data-hidden='true'] {
        opacity: 0;
      }
      #gnar-boot-chip[data-slow='true'] {
        border-color: #c8502e;
        color: #c8502e;
      }
      #gnar-boot-chip__dot {
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: #166f82;
        flex: none;
        animation: gnar-boot-chip-pulse 1.1s ease-in-out infinite;
      }
      #gnar-boot-chip[data-slow='true'] #gnar-boot-chip__dot {
        background: #c8502e;
        animation: none;
      }
      @keyframes gnar-boot-chip-pulse {
        0%, 100% { opacity: 0.35; }
        50% { opacity: 1; }
      }
      @media (prefers-reduced-motion: reduce) {
        #gnar-boot-chip__dot { animation: none; }
      }

      /* WEBGL_RESILIENCE_PLAN_20260825 §3 — the chip grows into a small
         friendly card for unrecoverable failures (gl-lost / map-error /
         unsupported device). Literal token values, same rationale as the
         chip itself: this must render before app.css/gnar-tokens.css can
         possibly have arrived. */
      #gnar-boot-chip[data-failed='true'] {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        padding: 14px 16px;
        border-radius: 12px;
        max-width: min(300px, calc(100vw - 32px));
        pointer-events: auto;
        border-color: rgba(22, 111, 130, 0.55);
        text-align: left;
      }
      #gnar-boot-chip[data-failed='true'] #gnar-boot-chip__dot {
        display: none;
      }
      .gnar-boot-card {
        display: flex;
        flex-direction: column;
        gap: 6px;
        width: 100%;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      }
      .gnar-boot-card__headline {
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0;
        color: #16201f;
      }
      .gnar-boot-card__body {
        font-size: 12px;
        letter-spacing: 0;
        color: #16201f;
        opacity: 0.8;
      }
      .gnar-boot-card__btn {
        align-self: flex-start;
        margin-top: 2px;
        padding: 7px 14px;
        border: none;
        border-radius: 999px;
        background: #166f82;
        color: #fff;
        font-family: inherit;
        font-size: 12px;
        font-weight: 600;
        cursor: pointer;
      }
      .gnar-boot-card__btn:hover {
        background: #135a68;
      }
      .gnar-boot-card__secondary {
        font-size: 10.5px;
        letter-spacing: 0;
        color: #16201f;
        opacity: 0.55;
      }
      .gnar-boot-card__lab {
        margin-top: 4px;
        font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
        font-size: 10px;
        color: #c8502e;
        opacity: 0.9;
        word-break: break-word;
      }

      /* 30 s no-frame fallback becomes tappable-to-restart too (no card
         chrome needed — same pill, just clickable + honest copy). */
      #gnar-boot-chip[data-slow='true'] {
        pointer-events: auto;
        cursor: pointer;
      }